Brush-machine



(No Model.) I 6 SheetsShe'et 2.

G. M. KIMBALL.

BRUSH MACHINE.

No. 532,735. 7 Patented Jan. 15, 1895;

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(N6 Model.)

0. M. KIMBALL.-

BRUSH MACHINE.

No. 532,735. Patented Jan. '15, .1895.

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(up Model.) 6 sheets-sheet 5 '0. M. KIMB ALL. BRUSH MACHINE.

No. 532,735. Patented Jan. 15, 189-5.

6 Sheets-Sheet 6.

(No Model.) 0. M. KIMBALL. BRUSH MACHINE. No. 532,735. Patented Jan. 15, 1895.

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- CHARLES M. KIMBALL, or AUBURNDALE, OHIO.

BRUSH-MAGHINVE.

SPECIFICATION forming part of Letters Patent N 0. 532,735, dated January 15, 1 895.

v Application filed November 15, 1892- Serial No. 452,043. (No model.)

To all whom it may concern:

Be it known that I, CHARLES M. KIMBALL, of Auburndalefln the county of Lucas and State of Ohio,have invented certain new and useful Improvements in Machines for Making Brushes, of which the following is a specification.

My invention relates to improvements in machines-for inserting bristles or their equivalents, into brush backs and fastening the same by means of metallic fasteners.

Myimprovements have reference to the antomatic feeding device for separating and feeding the bristles into a narrow row; the adjustable gate and channel; the mechanism for feeding the metal from which the fasteners are formed, and the reciprocating back rest.

My invention consists in the construction and combination of parts as hereinafter described and claimed.

In the drawings, which accompany and form part of this specification, Figure 1 is a perspective view of the entire machine, some of the details of construction being omitted therefrom. Fig. 2 is a front elevation of the parts of the machine above the stand. Fig. 3 is a plan view of the same with the needle pipe in horizontal section, and omitting the back rest for the brush block. Fig. 4 is a side elevation of the back rest, its supporting rod being broken away. Fig. 5 is a section means for reciprocating them.

on the line 5-5 of Fig. 4. Fig.6 is a section on the line 6-6 of Fig. 4. Fig. 7 is an enlarged view of the metallic fastener. Fig. 7 is a detail illustrating the position and shape of the tuft fastener after being secured in the block. Fig. 8 is a detail view showing the fastener carriage and the inserter, and the Fig. t is an enlarged detail perspective view of the fastener carriage and inserter needle. Fig. 9 is a detail sectional view illustrating the punch for forming the metallic fasteners. Fig. 10 is a detail plan view of the separator and its pivoted arm and the cam on the main shaft for operating the latter. Fig. 10 is a side elevation of the parts shown in Fig. 10. Fig. 11 is a detail side elevation illustrating a modified construction of the means for hold-- ing a brush-block while the tufts are being inserted. Fig. 12 is a section taken on the line 12,12 of Fig. 11. Fig. 13 is a plan view of the ratchet wheel and pawl shown in Fig. 12. Fig. 14 is a detail side elevation of the needle pipe, and Fig. let is a vertical longitudinal section of the same. .Fig. 15 is a detail rear elevation of the parts of the machine shown at the left in Fig. 2. Fig. 16 is a sec tionalviewof the machine on theline l616 of Fig. 1.

Similar letters and figures of reference'refor to the same parts throughout the several views. 7

A is the frame of the machine, the upper portion or'top A of which supports the ring B by means of the columns 0.

D is a metallic disk or table, which is vertioally adjustable by means of a screw d and is guided in its vertical movement by the posts 0. The'object of this vertical adj ustment of the table D is to enable bristles E, of differentlengths, which rest with their lower ends on said table, as shown in Fig. 2, to have their centers brought opposite the center of the channel hereinafter described.

Passing through the center of the table D is a shaft f to the upper end of which is secured a head F, to which head are secured rods Q, Q, extending across the table. Between these 'rods, at each end thereof, are placed the bristles E having their lower ends resting upon the table D, and being pressed outwardly against the ring B by cross pieces, G, G, which slide on guide rods q, q permanently attached to the head F at each end thereof; said cross pieces G, (ah being pressed outwardly against the bristles by means of springs H.

The ring B, instead of being continuous, has a portion B pivoted to one of the posts C,

to form a gate, and opposite the free end of this gate, the ring is brought to a sharp point b. The pressure of the mass of bristles against the gate will serve to keep said gate open as far as would be permitted by the adjusting screw 17 said screw serving to reduce the size of the outlet for the bristles, when desired.

Extending from the bristle outlet and tangential to the ring is a channel I formed between the fixed portion of the frame and an adjustable plate J, which is carried by the upper end of the arm J, pivoted at K to a bracket secured to the frame A. The plate J is adjusted so as to widen or narrow the channel I by means of a screw L, tapped through a stud connected with the arm J and passing through a stud on the supporting rod a, so as to revolve therein and not move longitudinally. Preferably the channel I will be wider than the opening at the gate so that the bristles, in being guided from the gate, will pass more freely along the channel.

The table D is extended as shown in Fig.-

3 partly by dotted lines, under the channels I and R, to support the bristles after leaving the main portion of the table.

The shaft f, and the head F, are revolved by means of a worm gear (not shown), meshing with a worm O on the main shaft P, which is driven by a belt applied to pulley P This main shaft is divided and provided with a friction clutch P of any preferred construction, the movable portion of which is'operated by a treadle P through the medium of suitable lever and rod connections, such as shown at P and P respectively in Figs. 1 and 2.

The outer end of the channel I, is intersected by another channel R at right angles to it, through which the separator S is given a reciprocating motion by the arm T pivoted to the frame at t and having at its other end a friction roll t which is, by means of the spring i held against a cam U on the shaft P. (See Figs. 8, and 10%) To adjust the throw of the separator, it is connected to the arm T by means of a link 8 operated by a wrist pin .9 projecting from a disk 3 which may be rotatively adjusted on the upper end of standard t projecting upward from the outer end of the arm T and secured in its adjusted position by means of a set screw 3 The separator S passes through the line of bristles, at the end of the channel I, thereby separating a knot or tuft of bristles and carrying such tuft to the fartherend of the channel R, directly in front of an inserter needle V. To adjust the width of the channel R, the side of said channel, opposite the end of the plate J is formed by a plate It which may be adjusted toward and from the said end of the plate J by means of an adjusting screw 9'. (See Fig. 3.)

The inserter needle V is reciprocated in the channel formed for it in the carriage V, through the medium of a link 2) (see Fig. 8) connected to the upper end of a lever 2) which is pivotally connected to a bracket upon the table A and vibrated by means of a stud v on said lever entering a cam groove 12 formed in the side of an eccentric m on the main shaft. The inserter needle, in ad vancing, pushes one of the metallic fasteners (which has been previously brought into proper position by means hereinafter described) before it, so that it engages the tuft, at the center of the latter, bends it double, and pushes it through the needle pipe W into a brush back which is held, by means hereinat'ter described, opposite the end of said needle pipe, and which brush back or block has been previously bored. When the bottom of the hole bored in theblock is reached, the point of the needle expands the fastener, thereby firmly securing the tuft in the hole of the brush block.

The needle pipe W, is made in two parts or halves, (see Figs. 14 and 14) the lower part of which is fitted into a recess planed in a shelf X, supported by a die frame Y and the column a. (See Figs. 1 and 3.) The other or top half of the needle pipe is secured to the lower part by suitable clamping means, as a screw 10.

The metal fasteners are formed from a tape or strip of metal g which is automatically fed from a coil (not shown) to the dies, indicated at X in Fig. 1, the latter being operated in any preferred or well'known manner.

-To automatically feed the strip of metal step by step, it is passed between a pawl 1 and an eccentric 2, both of which are carried by an arm 3 pivoted to the frame at 4 (see Figs. 1, 2 and and vibrated by means of a link 5 the outer end of which is secured to a rock arm 6 which is provided with an arc slot 7, the thumb nut 8 serving to secure said link at different distances from the center of motion of the rock arm so as to adjust the amount of feed of the metallic strip. The rock arm 6 is held by a spring Qagainst a cam 10 secured to a shaft 11, which is suitably geared to the main shaft of the machine. The eccentric 2, is provided with a pin 2 against which the adjusting screw 2 bears. Against the other side of said pin 2 bears a plug 2 carried by a spring 2 the object of which is to permit the eccentric to yield so that the strip will not be fed, should the strip or the fasteners become clogged in the dies. 13y adj usting the screw 2", the device is adapted to feed a metallic strip of a different thickness. Should the strip become clogged, the pawl 1 will push the eccentric down against the stress of the spring 2 and then pass and lose its grip on the strip. To warn the attendant that this has happened I have provided a signal such as a bell carried by the arm 3, said bell being struck by a hammer carried by the pawl 1 when the latter has been thrown over so as to lose its grip on the strip.

To hold the brush block while the tufts are being inserted, I have provided the following construction as shown in Figs. 1, 4, 5, 6 and 16. m is a sliding plate, adjustable in ways attached to the base of the frame by means of a suitable adjusting screw. ing plate is pivotally connected. an arm m which is vibrated by means of an eccentric m on the main shaft P, through the medium of an adjustable link m (see Figs. 1, 8 and 16) said link being composedof right and left hand screws connected respectively to the arm and the eccentric strap, and a right and left hand threaded sleeve uniting them. Ver- To this slid- -longitudinal groove m tically adjustable on the upper endof the arm m is a sleeve.m said sleeve being provided with an adjusting nut'm (see Figs. 4

and 11) adapted to bear against the said armm' and hold the sleeve in its adjusted position. The upper end of the sleeve is provided with a tubular bearing, the cap m of which has a The plunger m fits the bearing and is provided with two longitudinal grooves located at an angular distance from each other of ninety degrees. By means of a feather m" fitted into groove'm and into one of the grooves of the plunger 7 m the said plunger may be fitted to the bearing in either one of two positions and permitted to slide longitudinally therein. plunger near one end is bored out laterally in tapering form as at m and thereto is fitted a taper block m which is tightly held therein by means ofa thumb screw "m By loosening said thumb screw, the block may be rotated slightly in its bearing. The outer end of the plunger is provided with a slot m through which extends a. shank m rigidly connected to the plug m and having at its outer end a back rest plate M. As shown in Fig. 6, the

shank m is screwd into the side of the plug 1%". By the means thus described, the back rest plate may be held at various angles opposite the end of the needle pipe W. The object of setting the plunger in either one'of two positions permitted by the feather and the grooves described, is to prevent the split ting of the brush backs when making fine brushes and working on the outside rows. When such outside rows are being worked on, the'greatest diameter of the doubled tuft is liable toextend across the grain of the wood,

. and the change of position above referred to,

enables such tuft to be driven in with its greatest diameter in line with the grain of the wood.

In order that the back rest may yield somewhat to allow for different depths of holes bored in the brush back, I provide a screw m bearing against the rear end of the plunger, said screw being tapped through the end of an arm m pivoted to a bracket projecting from the'sleeve 1%, said arm being provided at its lower end, with a sleeve 111. which slides on a pin "m pivotally connected with the I sleeve m, a spring m being interposed bevance of the strip, pushed onto the recipro'.

tween said sleeve m and the inner end of the pin.

To make a brush, the block, (which has been bored with the required number of holes) is held in the hands of the operator with one of the tuft holes directly in front of the inserter pipe W. The back rest then advances lightly against the block until the tuft of bristles has been fastened into the block. As a' strip of metal is fed forward, the die punches out a fa'stenerwhich is then, by a further adcating fastener carriage V:. (See Figs. 3 and 8 and 8.) The inserter needle reciprocates in a channelformed in the upper surface of the car- The fastener doubles the bristles. It is then necessary that the carriage V should advance no farther, but the needle V must continue to advance so as to carry the doubled tuft and the fastener through the pipe W and into the brush block. To thus operate these parts, there is pivoted to-the lever 12 below the point of connection of the needle V, an arm 1; which is normally pressed upward by a spring o and isnprovided with an upwardly projecting stud o and a forwardly extending cam surface 12 The fastener carriage has a hole 11 and the bed in which the carriage reciprocates has a cam surface 22 It will thus be understood that as the lever 11 moves forward, the care riage and needle advance together until the cam surface 0 of-the arm '0 reaches the ca m surface p and the stud is thus withdrawn from the hole 0 and the carriage stops. 'On

stopped by the bottom of the hole in the brush lock, the said pointed end of theneedle spreads the fastener, as shown in Fig. ,7, and causes the heel points of the fastener to enter the wood at the sides of the hole in the brush block, and causes the intermediate concaved surface of the fastener to still further surround the tuft so as to prevent the side bristles of the tuft from working loose. Owing to the enlarged opening 11 the fastener is caused to-take an easy bend around the tuft.

The object of providing two cross pieces G, G, and two bristle receptacles, is to enable me IIO to use two different colors of bristles ordif-- .fe-rent kinds of stock, it being convenient in making brushes hit or miss, that is, in different colors with no particular pattern orfor. making the center of one color and the outside row of another color. In the latter case, if it is desired to omit one color, for a certain length of time, the operator canhold the gate B closed during the movement past it of the undesired stock of bristles.

The object of the sliding plate m and the adjustable link m of the back rest, is to enable an adjustment whereby the working space between the back rest plate and the end of the needle pipe W may be varied.

If it is desired to make .circular or wheel brushes for polishers, I may provide the sleeve m with a flat plate at its upper end, having a dove tailed groove, as indicated in Figs. 11 and 12, in which groove slides a block on having a screw m projecting from its upper surface. Fitted to turn loosely on the screw is a ratchet wheel m between the upper surface of which and a nut m there may be clamped a circular brush block, as at on. Pivoted to a bracket arm 727. is a lever 772 having a spring pressed pawl 112. pivoted to its inner end, said pawl engaging the teeth of the ratchet m Adj ustably secured to the outer end of lever m is a block m to which is connected one end of a link m as shown in Fig. 13, the other end of said link being suitably connected to the frame of the machine.

With this modified construction, it will be obvious that the movements imparted to the arm m will cause the ratchet wheel and the circular brush block to be rotated the space of one or more teeth at each movement of said arm m, the number of teeth passed over by the pawl m being determined by the distance at which the block on is set from the pivot of the lever on. 4

I do not claim herein the metallic tuft fastener shown and described, as the same is shown, described and claimed in my Patent No. 503,795, dated August 22,1893.

Having now described my invention, what I claim is- 1. Ina brush making machine, the combination with a rotary bristle receptacle, of a channel or passage extending tangentially therefrom, a separator for removing a tuft of bristles from the end of such passage, and means for doubling said tuft and inserting it in a brush block, substantially as described.

2. In a brush making machine, the combination with a table of a plurality of rotary bristle receptacles, adapted to carry bristles of different colors a channelor passage extending tangentially from the path of movement of the bristles, a separator for removinga tuft of bristles from the end of such passage, and means for doubling said tuft and inserting it in a brush block, substantially as described.

. 3. In a brush making machine, the combination with a vertically adjustable table, of a horizontal rotary bristle receptacle, adapted to confine a mass of bristles with their lower ends resting on said table, a channel or passage extending tangentially from the receptacle, an adjustable gate for permitting the passage of bristles from the receptacle to the said channel, a separator for removinga tuft of bristles from the end of such passage, and means for doubling said tuft and inserting it in a brush block, substantially as described.

4. In a brush making machine, the combination with a ring B, having an adjustable gate B, of the vertically adjustable disk or table D, a shaft extending vertically through the table and having a cross head at its upper end, guide rods carried by said cross head, and cross pieces G, G, fitted to slide on said rods and having springs H connected thereto, substantially as described.

, 5. In a brush making machine, the combination with a movable bristle receptacle having an adjustable outlet gate of a bristle conduit leading therefrom, said conduit being adjustable in width, and means for separating a tuft of bristles from the mass and inserting them into a brush block, substantially as described.

6. In a brush making machine, the combination with a conduit for metallic fasteners, of a fastener carriage, suitably supported and movable in a path intersecting the path of the fasteners, an inserter needle also movable in said fastener carriage, a lever for reciprocating said needle and carriage, and means for automatically detaching said carriage from the lever, at a predetermined point, substantially as described.

7. In a brush making machine, the combination with a conduit for the metallic fasteners, of a fastener carriage V suitably supported and having a groove therein, an inserter needle in said groove, a lever connected to said needle, the arm 22 connected to said lever and having a stud and cam surface, a stationary cam surface o said carriage being provided with a hole 07, to receive the stud substantially as described.

8. In a brush making machine, the combination with a frame, of an adjustable sliding plate, an arm pivotally connected thereto, and means for vibrating said armand a backrest supported by the upper end of saidarm, substantially as described.

9. In a brush making machine, the combination with the vibrating arm m having an adjustable fulcrum at its lower end and a back rest at its upper end, of a shaft having a cam and an adjustable connection between said cam and arm, substantially as described.

10. In a brush making machine, the combination with the vibrating arm m the sleeve m carried thereby and having atubular bearing at its upper end, provided with agroove, a plunger fitted to said bearing and having two grooves therein, a feather adapted to connect the groove in the bearing with one of the grooves in the plunger and a back rest plate carried by said plunger, substantially as described.

11. In a brush making machine, thecombination with a vibrating arm, having a bearing at its upper end, of a plunger fitted to said bearing and having a taper bore near one end, a taper plug fitting said bore, means for clamping said plug in the bore, and a back rest plate projecting from said plug, substantially as described.

12. In a brush-making machine, the combination with dies for forming fasteners from a strip of metal, of a vibrating arm carrying a pawl and a yielding eccentric for feeding the strip of metal and a spring for pressing the eccentric upward, substantially as de- In testimony whereof I have signed my 10 scribed. name to this specification, in the presence of 13. In a brush making machine, the combitwo subscribing witnesses, this 10th day of nation with dies for forming fasteners from November, A. D. 1892,

a strip of metal, of a vibrating arm carrying a pawl and a yielding eccentric for feeding CHARLES KIMBALL' the strip of metal, a bell carried by said arm Witnesses:

and a hammer connected with the pawl, sub- J NO. RITCHIE,

stantially asdescribed. 1 HORACE A. MERRILL. 

